Availability
Engine Block, Cast Iron, 4-Bolt Mains, 4.000 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, 350, Each
Part Number: NAL-12480049
Not Yet Reviewed
Estimated Ship Date: Nov 3, 2025 if ordered today
Estimated Ship Date: Nov 3, 2025 if ordered today
350 MAIN BLOCK, 4.125 BORE
Part Number: BRO-8B1050
Not Yet Reviewed
Estimated Ship Date: Sep 22, 2025 if ordered today
Estimated Ship Date: Sep 22, 2025 if ordered today
Engine Block, Aluminum, 4-Bolt Mains, 4.125 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Small Block, Each
Part Number: BRO-8B1000A
Estimated Ship Date: Sep 22, 2025 if ordered today
Estimated Ship Date: Sep 22, 2025 if ordered today
ENGINE BLOCK
Part Number: BRO-8B1000B
Not Yet Reviewed
Estimated Ship Date: Sep 22, 2025 if ordered today
Estimated Ship Date: Sep 22, 2025 if ordered today
Engine Block, Aluminum, 4-Bolt Mains, 4.500 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Big Block, Each
Part Number: BRO-8B5025
Not Yet Reviewed
Estimated Ship Date: Sep 22, 2025 if ordered today
Estimated Ship Date: Sep 22, 2025 if ordered today
Engine Block, Aluminum, 4-Bolt Mains, 4.500 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Big Block, Each
Part Number: BRO-8B2000A
Not Yet Reviewed
Estimated Ship Date: Sep 22, 2025 if ordered today
Estimated Ship Date: Sep 22, 2025 if ordered today
Engines, Bare Blocks, Gen III Hemi, Cast Iron, OEM Style, Standard Deck, 4.10 in. Bore, 2-Bolt Mains, with OptiTorque Stud Kit, Dodge, RAM, 6.4L, Each
Part Number: CPI-S0032
Not Yet Reviewed
Estimated Ship Date: Oct 29, 2025 if ordered today
Estimated Ship Date: Oct 29, 2025 if ordered today
Engines, Bare Blocks, Gen III Hemi, Cast Iron, OEM Style, Standard Deck, 4.10 in. Bore, 2-Bolt Mains, Energy Billet Main Caps, Dodge, RAM, 6.4L, Each
Part Number: CPI-S0033
Not Yet Reviewed
Estimated Ship Date: Oct 29, 2025 if ordered today
Estimated Ship Date: Oct 29, 2025 if ordered today
Engine Block, Iron Eagle, Cast Iron, 3.386 in. Bore, 4-Bolt Main, Machined for 1/2 in. Studs, 2JZ, Toyota, Each
Part Number: DRT-31011011
Not Yet Reviewed
Estimated Ship Date: Sep 26, 2025 if ordered today
Estimated Ship Date: Sep 26, 2025 if ordered today
Engine Block, Aluminum, 4-Bolt Mains, 4.500 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Big Block, Each
Part Number: BRO-8B2200C
Not Yet Reviewed
Estimated Ship Date: Sep 22, 2025 if ordered today
Estimated Ship Date: Sep 22, 2025 if ordered today
Engine Block, Aluminum, 4-Bolt Mains, 4.125 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Small Block, Each
Part Number: BRO-8B1000
Not Yet Reviewed
Estimated Ship Date: Sep 22, 2025 if ordered today
Estimated Ship Date: Sep 22, 2025 if ordered today
ENGINE BLOCK
Part Number: BRO-8B1050B
Not Yet Reviewed
Estimated Ship Date: Sep 22, 2025 if ordered today
Estimated Ship Date: Sep 22, 2025 if ordered today
Engine Block, Cast Iron, 4-Bolt Mains, 4.115 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Small Block, Each
Part Number: WRL-084020
Not Yet Reviewed
Estimated Ship Date: Sep 10, 2025 if ordered today
Estimated Ship Date: Sep 10, 2025 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Estimated Ship Date: Tomorrow
CYLINDER
Part Number: DCC-05004038AB
Not Yet Reviewed
Estimated Ship Date: Sep 8, 2025 if ordered today
Estimated Ship Date: Sep 8, 2025 if ordered today
Engine Block, Aluminum, 4-Bolt Mains, 4.500 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Big Block, Each
Part Number: BRO-8B5000
Not Yet Reviewed
Estimated Ship Date: Sep 22, 2025 if ordered today
Estimated Ship Date: Sep 22, 2025 if ordered today
Engine Block, Aluminum, 4-Bolt Mains, 4.125 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Small Block, Each
Part Number: BRO-8B1050C
Not Yet Reviewed
Estimated Ship Date: Sep 22, 2025 if ordered today
Estimated Ship Date: Sep 22, 2025 if ordered today
Engine Block, Aluminum, 4-Bolt Mains, 4.125 in. Diameter Bore, 2-Piece Rear Main Seal, Chevy, Small Block, Each
Part Number: BRO-8B1000E
Not Yet Reviewed
Estimated Ship Date: Sep 22, 2025 if ordered today
Estimated Ship Date: Sep 22, 2025 if ordered today
engine block,FR9 CYLINDER BLOCK
Part Number: FMS-M-6010-R501
Not Yet Reviewed
Estimated Ship Date: Sep 3, 2025 if ordered today
Estimated Ship Date: Sep 3, 2025 if ordered today
Engines, Bare Blocks, 351 Aluminum Windsor Engine Block, 351 Windsor Mains, 9.200 in. Deck Height, 4-bolt Main, Ford, V8, Small Block Windsor, Each
Part Number: FMS-M6010Z35192
Not Yet Reviewed
Estimated Ship Date: Sep 3, 2025 if ordered today
Estimated Ship Date: Sep 3, 2025 if ordered today
Engine Block, Aluminum, 6-Bolt Mains, 4.125 in. Diameter Bore, 1-Piece Rear Main Seal, Chevy, LS, Each
Part Number: EDL-54903U
Not Yet Reviewed
Estimated Ship Date: Sep 3, 2025 if ordered today
Estimated Ship Date: Sep 3, 2025 if ordered today
Cylinder Sleeve Assembly - Cat. 159mm/6.250" Bore D353, D379, D398, D399 (with OE#7N5036)
Part Number: MAH-2261690
Not Yet Reviewed
Estimated Ship Date: Sep 9, 2025 if ordered today
Estimated Ship Date: Sep 9, 2025 if ordered today
Engines, Bare Blocks, SBC Motown LS Bare Block, 350 Mains, 9.240 in. Deck Height, 4-bolt Main Bolt Style, Chevrolet, V8, Chevy Small Block Gen I, Each
Part Number: WRL-084181
Estimated Ship Date: Sep 10, 2025 if ordered today
Estimated Ship Date: Sep 10, 2025 if ordered today
Modal Header
Call To Order
This is a custom order part. You can order this part by Contacting Us.
Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster
